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EVALUATION OF TOPOGRAPHIC INDICES FOR EPHEMERAL-GULLY EROSION ASSESSMENT

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International Journal of Sediment Research 2005年第4期20卷 295-304页

作者： J. CASALí L. M. De SANTISTEBAN J. J. LóPEZ J. V. giraldez J. POESEN J. NACHTERGAELE M. GOI J. LOIZU M. A. CAMPO Department of Projects and Rural Engineering Universidad Pública de Navarra Campus de Arrosadía s/n 31006 Pamplona (Navarra) Spain Department of Agronomy University of Córdoba Apdo. 3048 14080 Córdoba Spain K. U. Leuven Laboratory of Experimental Geomorphology Redingenstraat 16 B-3000 Leuven Belgium Department of Projects and Rural Engineering Universidad Pública de Navarra Campus de Arrosadía s/n 31006 Pamplona (Navarra) Spain

Soil erosion by concentrated flows in agricultural areas is an important process affecting soil losses and landscape degradation. The main factors controlling concentrated flow erosion include the erodibility of materials, soil use and management, climate, and watershed topography. In this paper, two topographic indices, closely related with mathematical expressions suggested by different authors, are used to characterize the influence of watershed topography on gully erosion. The AS1 index is defined as the product of the watershed area and the partial area-weighted average slope. The AS2 index is the product of the watershed area and the length-weighted average swale slope. Using different ephemeral gully erosion databases, a high correlation was found between the topographic indices and the volume of eroded soil. The accuracy of different methods for field measurement of ephemeral gullies was evaluated to ensure that the relation between erosion and topographic indices is not affected by assessment errors. The resulting relation are useful to assess soil losses from gully erosion, to identify the most susceptible watersheds within large areas, and to compare the susceptibility to gully erosion among different catchments. This information also can be important to study the response of natural drainage network systems to different rainfall inputs.

关键词： Concentrated flow erosion Ephemeral gully erosion Erosion prediction Watershed topography

育肥羔羊饲粮中添加槲皮素和亚麻籽对其免疫反应、运输过程中应激和瘤胃酸中毒的影响

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饲料博览 2014年第3期24卷 25-25页

作者： Benavides J martinez-Valladares M Tejido M L giraldez F J Bodasl R Prieto N Parez V Andres S

根据体重将32只羔羊分为4组,每组2个重复,每个重复4只羊。分别饲喂混有棕榈油的全混合日粮(TMR)(CTRL,棕榈油34 g·kg-1TMR)、混有亚麻籽的TMR(FS,2个重复,每个重复4只羊,亚麻籽85 g·kg-1TMR)。以及含有槲皮素的TMR(QCT,在每千克含棕榈... 详细信息

根据体重将32只羔羊分为4组,每组2个重复,每个重复4只羊。分别饲喂混有棕榈油的全混合日粮(TMR)(CTRL,棕榈油34 g·kg-1TMR)、混有亚麻籽的TMR(FS,2个重复,每个重复4只羊,亚麻籽85 g·kg-1TMR)。以及含有槲皮素的TMR(QCT,在每千克含棕榈油34 g的TMR中添加槲皮素2 g;FS-QCT,在每千克含亚麻籽85 g的TMR中添加槲皮素2 g)。试验3周后,通过皮下注射乳清蛋白进行免疫接种,并在免疫后0、4、9、14和17 d测抗卵清蛋白,然后对所有羔羊进行4 h的运输应激试验,研究公路运输过程中血液和生化指标的变化,最后屠宰。与对照组相比,FS组羊的平均卵清蛋白lgG抗体滴度在14和17 d显著下降(P=0.033)。在运输过程中,FS组的白细胞和组织损伤(肌酸磷酸激酶)显著减少(P<0.05)。因此,亚麻籽具有一定的免疫学特性和抗运输过程中组织损伤的作用。对于瘤胃酸中毒,槲皮素和亚麻籽可以减少角质化程度。

关键词：育肥羔羊免疫反应亚麻籽槲皮素瘤胃酸中毒运输过程饲粮应激

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不稳定型心绞痛和PTCA术后患者血小板和白细胞的黏附和激活

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世界核心医学期刊文摘（心脏病学分册） 2005年第9期1卷 50-50页

作者： Serrano Jr. C.V. Rocha giraldez R. De Lara Fernandes J. 孙凯 Heart Institute(InCor) Univ. of S. Paulo Medical School Av. Dr. E. de Carvalho Aguiar 44 So Paulo SP-05403-000 Brazil

Background: Unstable atherosclerotic plaques activate blood cells which may adhere to the coronary endothelium causing vessel occlusion. However, it is unknown if different clinical syndromes associated with plaque rupture induce similar blood cell activation and adhesion to the endothelium. Methods: We studied changes in adhesion molecule expression of platelets(GPIIb/IIIa), neutrophils -CD18, CD11b and L-selectin -and monocytes(CD14) after interaction with active lesions of patients with stable angina subjected to PTCA and patients with unstable angina(UA). Generation of superoxide(SO) radicals from PMNs and PMN sequestration in the coronary circulation were also assessed. Blood samples were collected from the aorta(Ao) and coronary sinus(CS) before and 15 min after PTCA(n=13) and within the first 48 h of UA(n=12). Results: PTCA induced a marked up-regulation of CD18, CD11b, CD14 and GPIIb/IIIa with L-selectin shedding and reduced SO formation, whereas only minor L-selectin down-regulation and decreased SO production indicated activation in UA. However, a significant decrease in neutrophil count in the CS compared to the Ao was only observed in UA. Conclusions: The magnitude of cellular activation depends on the underlying clinical setting and just partially contributes to cell adhesion to the endothelium which might be modulated by different extent of vascular occlusion and shear forces.

关键词：不稳定型心绞痛 PTCA术选择素冠状动脉循环稳定斑块斑块破裂黏附分子冠状窦临床综合征中性粒细胞

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采用脉冲式聚焦超声释放游离MicroRNA肿瘤生物标志物进入血循环:一种无创性、可解剖定位的分子液体活检方法

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国际医学放射学杂志 2017年第3期 347-347页

作者： J.R.Chevillet T.D.Khokhlova M.D.giraldez G.R.Schade F.Starr Y.Wang 朱好辉 Division of Human Biology Fred Hutchinson Cancer Research Center

摘要目的为比较脉冲式聚焦超声的3种物理性能(包括致组织液化作用、使通透性增加及温热效应)活体情况下释放肿瘤来源的micro RNA进入血液循环的释放动力学情况。材料与方法所有大鼠实验均获得华盛顿大学动物伦理委员会批准。采用定量逆... 详细信息

摘要目的为比较脉冲式聚焦超声的3种物理性能(包括致组织液化作用、使通透性增加及温热效应)活体情况下释放肿瘤来源的micro RNA进入血液循环的释放动力学情况。材料与方法所有大鼠实验均获得华盛顿大学动物伦理委员会批准。采用定量逆转录聚合酶链反应阵列分析法识别出大鼠实体瘤细胞系中的Micro RNA生物标志物。大鼠皮下移植这些细胞后,随机分配到3个不同条件的脉冲式聚焦超声组:1通过沸腾法进行组织摧毁造成局部组织液化组,2通过空化效应增加组织通透性组,3轻度(<10℃)加热组

关键词：脉冲式聚焦超声生物标志物 MicroRNA 肿瘤来源